Variable wattage control system

Details Variable wattage control system Variable wattage control system

2007-08-14

2007-08-14

Cabrera, Zoiila (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Mechanical control system

C700S276000, C700S297000, C700S299000, C219S494000

Reexamination Certificate

active

10644719

ABSTRACT:
A variable wattage control system is disclosed for providing varying wattage levels for a power-receiving device. The power-receiving device is operatively associated with a sensing means that communicates with a temperature controller for comparing the sensed temperature with a predetermined set point. If the sensed temperature falls outside the set point, the temperature controller directs a power control means to turn on the heating element at a specific wattage level. The variable wattage control system may include a micro-controller contained in either the temperature controller, power controller or a separate module which determines a power output scaling factor based on the percentage of the full line voltage being applied to the power-receiving device and then scaling the power output. The power output scaling factor determines the maximum percentage power to be applied to the power-receiving device such that a single device may be driven at different power levels for various applications.

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Whitaker, Tim, “Fact or Fiction—LEDs don't produce heat”, May 2005, LEDs Magazine, http://ledsmagazine.com/articles/features/2/5/8/1.

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